OPERATING INSTRUCTIONS

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Sybil Hamilton
5 years ago
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3 OPERATING INSTRUCTIONS When this Jack leaves the factory, the air release plug is closed to prevent the oil being spilled when the Jack is in transit. To simplify the air-venting of the oil chamber, a filter plug (Part No 264) is fitted. Before using the Jack, remove the cover plate by unscrewing two side screws, and unscrew filler plug three quarters of a turn. This will break the seal between the plug and leather washer (Part No. 282/N) and allow the oil chamber to breathe. Replace cover plate and side screws. NB. It is MOST IMPORTANT to follow these instructions before using the Jack. If the oil chamber it not allowed to breathe the Jack may become air locked and will not function. To operate, tighten release valve spindle (Part No by turning in clockwise direction. Place handle in operating lover (Part No. 1561) and move handle up and down. To lower Jack turn release valve spindle, VERY SLOWLY, in anti-clockwise direction. When topping up the Jack, remove the filler plug (Part No. 264) in the oil chamber, and with the trolley Jack standing on level ground fill until the oil lust covers the ram cylinder (Part No. 1526) which can be seen through the fitter plug hole, as shown in the diagram. To manoeuvre Jack into position under a car, place handle in the socket which is situated on the right-hand side of the Jack. UNDER NO CIRCUMSTANCES should the Jack be manoeuvred when the handle is in the operating lever, as a side thrust may bend the piston (Part No. 1554). The wheels should be occasionally oiled, and a grease gun applied to the two nipples on the lifting arm spindle. A diagrammatic drawing is supplied with each Jack, and all the parts likely to be required for servicing are numbered. OIL The oil used in the Jack is specially blended, and is available in 8 fl.oz. plastic bottles. If our oil is not readily obtainable, the equivalent international oil specification is SAE1O. NOTE When ordering spares, besides quoting the relevant part number, please state serial number of Jack.

4 SERVICE INSTRUCTIONS FOR TROLLEY JACKS If Jack fails to lift make sure that the release valve (Part No. 847) is tightened in a clockwise direction. Secondly, check that the Jack has sufficient oil. This can be done by unscrewing the oil level plug (Part No. 264). ON NO ACCOUNT REFILL OR TOP UP THE JACK WITH SHOCK ABSORBER OR BRAKE FLUID. Preferably use our specially blended oil which can be purchased in 8 fl.oz. plastic bottles, or if unable to obtain this, transformer or thin machine oil may be used. The equivalent international specification is SAE1O. Note: To top up Jack with oil, first remove filler plug (Part No. 264). Yet another reason for the Jack not working is if it gets air-locked. To remedy this slacken the release valve and pump the handle socket (Part No. 1561) up and down a few times and close the release valve. If the Jack still does not function, it is probably because a small particle of foreign matter is preventing one of the ball valves from making an oil tight joint on its seating. In this case it will be easier to remove the heart which is a simple operation. First remove the return spring (Part No. 1540), remove three nuts (Part No. 1531) and one front wheel (Part No. 1532). One side can now be removed from the Jack, Then withdraw body anchor bolt (Part No. 1538) which secures the heart to the chassis. The heart is now free and it will be necessary to remove circlip (Part No. 1567) and withdraw crosshead pin (Part No. 1539). Note: The spacing collars should be placed in position on the body anchor bolt so that there is one collar on either side of the body. The side that has been removed can now be reassembled on the three bolts. One washer (Part No. 1536) fits over the front wheel spindle (Part No. 1533) before the wheel is reassembled. All three nuts and washers should be well tightened and the return spring should be reassembled on its two securing studs. If the ram fails to move the cause of failure is due to the inlet valve (Part No. 267) not making an oil tight joint. To remedy this, remove the sealing plug (Part No. 1586) with a screwdriver, (the sealing plug is a ½ diameter steel plug situated under the boss in the body casting which fits over the body anchor bolt), and take out the hair spring and ball, and clean the ball seating. This is best done by blowing with compressed air if available. Wipe ball and replace on its seat. To make sure that it is making a proper seating, you require a 1/4 diameter punch. This can easily be made by cutting off a piece of 1/4 diameter silver steel or mild steel about 3 long. Having inverted the heart (that is base upwards) place the punch on the ball and give the punch a tight tap with a small hammer. This will have the effect of reseating the ball on its seat. Next replace the hair spring (smallest diameter touching the ball) and then screw in the seating plug and well tighten. If you commence pumping and the ram lifts a short distance and sinks back to its original position when the handle is again lifted this indicates that the non-return valve at the bottom of the ram cylinder is not seating. To remedy this fault it is necessary to partly disassemble the Jack. Before commencing to disassemble the Jack, remove filler plug (Part No.264) and empty oil into a clean vessel. Then remove top nut (Part No. 1502) and oil chamber (Part No.

5 1528) and withdraw ram assembly. It is now possible to undo the ram cylinder (Part No.1526) by using chain grips. At the bottom of the ram cylinder there is a gauze filter (Part No. 1527). This must be carefully removed and if damaged a new one fitted. Now remove the 1/4 diameter ball and blow out with a compressed air gun. Next wipe ball and replace and reseat by using the same punch as described above. Replace copper and gauze washers, screw in ram cylinder and well tighten. Note: One end of the ram cylinder has the thread turned away, this is the end to be screwed into the base. Replace oil chamber with fibre washers top and bottom and well tighten the top nut. If oil leaks past the piston (Part No. 1554) it generally indicates that a new piston seal (Part No. 842) is required. To remove piston, take off circlip (Part No. 1563) and withdraw pivot pin (Part No. 1562). The lever will now swing out of the way enabling the piston to be withdrawn from the sleeve. If the piston sleeve (Part No. 830) has to be removed it is important to replace piston gauze filter (Part No. 485). Front Wheel Assembly The front wheels (Part No. 1532) are fitted with roller bearings. Each wheel has 25 rollers (Part No. 1537). Castor Wheel Assembly Each castor is fitted with eighteen 1/4 diameter ball bearings (Part No. 267). To adjust the castor, slacken lock nut (Part No. M216) and adjust, with a screwdriver, bolt (Part No. 1568). Having adjusted the castor so that it rotates freely without side play, tighten lock nut (Part No. M216). Service Kits These are available and comprise the necessary washers and seals that would be required for a general overhaul of the heart. Should any other parts be required please refer to the sectional drawing and quote the appropriate part number and serial number of the Jack when ordering.

6 SPECIFICATION OF TROLLEY JACK 1510 LIFTING ARM ASSEMBLY /16" 1 BisseIl Pin 1522 Lifting Arm Spindle 1566 Grease nipple 2 off 1529 CASTOR FORK ASS BLY 2 off /4" diameter Circlip, 2 off mm Nut. 6 off 1568 Bolt for Castor Fork, 2 off 1532 Front Wheel, 2 off 1569 Box 1533 Front Spindle 1584 SWIVELLING CRUTCH 1534 Spacing Bush Front Wheel, 2 off 1593 LEFT SIDE MEMBER ASS BLY 1536 Plain Washer. 2 off 1594 RIGHT SIDE MEMBER ASS BLY 1537 Rollers for Front Wheel, 50 off 1605 CRUTCH MOUNTING BRACKET 1538 Body Anchor Bolt /16" Spring Washer, 2 off 1539 Cross Head Pin 1655 Stud for Crutch Mount Bracket, 2off 1540 Return Spring 1657 Radius Link Stud 1541 Castor Wheel. 2 off 1692 Screw for Radius Link Stud 1542 Spindle lot Castor, 2 off 1696 Spring Washer. 6 off /2" diameter Circlip 1703 PUMP ASSEMBLY 1545 Crutch Radius Link RF365 1/4" BSF Screw. 2 off 1550 Name Plate M216 3/8" UNF Nut. 2 off 1551 Cover Plate M217 3/8" Shake Proof Washer. 2 off 1552 Spacing Collar, 2 off M829 Steel Washer. 2 off 1675 Handle Assembly 267 1/4" Ball, 36 off SPECIFICATION OF HYDRAULIC PUMP UNIT (Part No. 1703) 1588 Sealing Plug Washer 1526 Ram Cylinder 264 Oil Level Plug 1527 Gauze Washer 265/L 2BA Side Screw 1528 Oil Chamber 267 1/4" Ball. 3 off 1554 Piston 281 Hair Spring 1555 Pivot Pin for Lever Link. 2 off 282/N Filler Plug Washer Oil Chamber Fibre Washer, 2 off 485 Piston Gauze 1561 Lever 821 LEVER LINK 1562 Pivot. Pin for Piston 830 Piston Sleeve 1563 Circlip for Pivot Pin. 6 off 842 7/16" sq sect O-ring 1564 Ram Sealing Ring 847 Release Valve Spindle 1586 Sealing Plug, 2 off 880/L 3/4" o.d. Washer Eye Bolt 1589 Release Valve Distance Piece 1502 Top Nut 1597 Body 1504 Eye Bolt 1599 Spring Plunger 1747 Collar for Cup Seal 1602 Solid Ram 1745 Cup Seal /16" o.d O-ring. 2 off 1625 O Ring 1598 Overload Spring 1746 Socket Screw FOR SERVICE KIT & SPARES IT IS ESSENT!AL TO QUOTE SERIAL No

OPERATION MANUAL. Note: Owner and operator MUST read and understand the operating instructions before using the Hand Pallet Truck. Date:2014.

OPERATION MANUAL. Note: Owner and operator MUST read and understand the operating instructions before using the Hand Pallet Truck. Date:2014. OPERATION MANUAL Note: Owner and operator MUST read and understand the operating instructions before using the Hand Pallet Truck. Date:2014.07 1 MLX55 SERVICE CHECK LIST OPERATION A. With control lever